# -*- coding: utf-8 -*-

#输出绝对值
def my_abs(x):
    if x >= 0:
        return x
    else:
        return -x
		

def my_abs_2(x):
    if not isinstance(x, (int, float)):
        raise TypeError('bad operand type')
    if x >= 0:
        return x
    else:
        return -x
		
